Exhaust systems

  • EMR stands for Electronic Motor Regulation and is available for the DT(A)44 and DT(A)66 engines. The functions of the engine are now electronically controlled instead of mechanically.

  • A waterlock collects the cooling water present in the exhaust system when the engine has stopped, helping to prevent water ingress into the engine and thereby preventing damage to the engine. In addition a waterlock reduces the exhaust noise considerably.

  • An exhaust transom outlet must always be fitted above the waterline. We advise a minimum distance of 5 cm between the waterline and the lowest part of the exhaust transom outlet.

  • Providing that the engine is also above the waterline. Remember, the waterlock must always be lower than exhaust outlet on the engine.

  • We highly recommend the use of an exhaust temperature alarm. Not only this may save your boat but also your life. If the water injection is blocked for whatever reason the alarm will go off and the issue can be fixed before it has created serious problems for the waterlock and the engine.
    If you want to be extra save, please have a look at our HD-line waterlocks. These can even withstand uncooled exhaust gas for more than 10 minutes! This would give you extra time to react to the alarm.

  • Air vents fitted with a valve require periodic maintenance in order to prevent blockage. The valve should be removed and washed out with fresh water. Air vents fitted with a bleed hose to the hull of the boat do not require periodic maintenance.

  • Model type ASDV can be removed by hand and no tools are necessary. Model AIRVENTV requires a crosshead screwdriver.

  • To choose the right hose diameter you have to know the allowable back pressure and power of your engine. By filling in our calculation tool [link] the hose diameter can be calculated. You also need to know how much capacity you need. This can be calculated with the hose diameter and the hose length that is used in the installation. [ formule of verwijzing catalogus of berekenings ding]

  • The key for a good functioning and noise reducing exhaust system is to find balance between blocking the noise without obstructing the flow and therefore increasing the back pressure. All the Vetus waterlocks and mufflers are designed and tested to create this perfect balance. Knowing this, you can imagine a waterlock with the revolutionary 3 chamber technology (NLP3) is more noise cancelling than a NLPH, and an installation with a muffler is more noise cancelling than one without.

  • A “Dry” exhaust system causes a tremendous amount of noise and diesel exhaust smell. A diesel engine can easily produce an exhaust gas temperature of 600 ˚C or more. Applying a wet exhaust system would not only better reduce the exhaust noise than a dry exhaust system, it also reduces the exhaust gas temperature to about 40 ˚C to 50 ˚C by injecting the engine cooling water in to the exhaust line.

  • With a synthetic waterlock you avoid corrosion issues, also it is resonance-reducing which results in less noise. With the rotatable hose connections we make the waterlock easy to fit into different installations. Many waterlocks in the VETUS program are also available in HD Navidurin material. This material outperforms GRP.

  • No that’s not necessary, the exhaust product line is large and can be used for a lot of different engines. Of course we highly appreciate it, if you would choose a Vetus engine. Did you know that Vetus engines come with a unique 5 year warranty?

  • This has been caused because the engine did not get sufficient cooling water. Reasons for this include; a damaged pump impeller, a blocked cooling water strainer or inlet, or the inlet seacock being closed.

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